[INFO] fetching crate rsmnl-linux 0.1.0...
[INFO] checking rsmnl-linux-0.1.0 against master#385fa9d845dd326c6bbfd58c22244215e431948a for never-type-fallback-to-never
[INFO] extracting crate rsmnl-linux 0.1.0 into /workspace/builds/worker-2-tc1/source
[INFO] validating manifest of crates.io crate rsmnl-linux 0.1.0 on toolchain 385fa9d845dd326c6bbfd58c22244215e431948a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate rsmnl-linux 0.1.0
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate rsmnl-linux 0.1.0
[INFO] tweaked toml for crates.io crate rsmnl-linux 0.1.0 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] crate crates.io crate rsmnl-linux 0.1.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded rsmnl-derive v0.1.0
[INFO] [stderr]   Downloaded rsmnl v0.1.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8c4c235d8218354eb773f0364e50d934298f1dcbc7b98339fb4ef3ed3bb28144
[INFO] running `Command { std: "docker" "start" "-a" "8c4c235d8218354eb773f0364e50d934298f1dcbc7b98339fb4ef3ed3bb28144", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8c4c235d8218354eb773f0364e50d934298f1dcbc7b98339fb4ef3ed3bb28144", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8c4c235d8218354eb773f0364e50d934298f1dcbc7b98339fb4ef3ed3bb28144", kill_on_drop: false }`
[INFO] [stdout] 8c4c235d8218354eb773f0364e50d934298f1dcbc7b98339fb4ef3ed3bb28144
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 99acecac61b96c3bffda2e0134eda2e2550594862d5aea8309a6bb4e926467aa
[INFO] running `Command { std: "docker" "start" "-a" "99acecac61b96c3bffda2e0134eda2e2550594862d5aea8309a6bb4e926467aa", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.101
[INFO] [stderr]    Compiling proc-macro2 v1.0.29
[INFO] [stderr]    Compiling syn v1.0.75
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]     Checking errno v0.2.7
[INFO] [stderr]     Checking mio v0.7.13
[INFO] [stderr]     Checking rsmnl v0.1.0
[INFO] [stderr]    Compiling rsmnl-derive v0.1.0
[INFO] [stderr]     Checking rsmnl-linux v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `libc` is imported redundantly
[INFO] [stdout]  --> src/neighbour.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use libc;
[INFO] [stdout]   |     ^^^^
[INFO] [stdout]   |
[INFO] [stdout]  ::: src/lib.rs:2:1
[INFO] [stdout]   |
[INFO] [stdout] 2 | extern crate libc;
[INFO] [stdout]   | ------------------ the item `libc` is already imported here
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `libc` is imported redundantly
[INFO] [stdout]  --> src/neighbour.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use libc;
[INFO] [stdout]   |     ^^^^
[INFO] [stdout]   |
[INFO] [stdout]  ::: src/lib.rs:2:1
[INFO] [stdout]   |
[INFO] [stdout] 2 | extern crate libc;
[INFO] [stdout]   | ------------------ the item `libc` is already imported here
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `sport` and `dport` are never read
[INFO] [stdout]    --> src/rtnetlink.rs:576:5
[INFO] [stdout]     |
[INFO] [stdout] 575 | pub struct _RtaSessionUnionPorts {
[INFO] [stdout]     |            --------------------- fields in this struct
[INFO] [stdout] 576 |     sport: u16,
[INFO] [stdout]     |     ^^^^^
[INFO] [stdout] 577 |     dport: u16,
[INFO] [stdout]     |     ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `_RtaSessionUnionPorts` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `itype`, `code`, and `ident` are never read
[INFO] [stdout]    --> src/rtnetlink.rs:581:5
[INFO] [stdout]     |
[INFO] [stdout] 580 | pub struct _RtaSesseionUnionIcmpt {
[INFO] [stdout]     |            ---------------------- fields in this struct
[INFO] [stdout] 581 |     itype: u8,
[INFO] [stdout]     |     ^^^^^
[INFO] [stdout] 582 |     code: u8,
[INFO] [stdout]     |     ^^^^
[INFO] [stdout] 583 |     ident: u16,
[INFO] [stdout]     |     ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `_RtaSesseionUnionIcmpt` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `sport` and `dport` are never read
[INFO] [stdout]    --> src/rtnetlink.rs:576:5
[INFO] [stdout]     |
[INFO] [stdout] 575 | pub struct _RtaSessionUnionPorts {
[INFO] [stdout]     |            --------------------- fields in this struct
[INFO] [stdout] 576 |     sport: u16,
[INFO] [stdout]     |     ^^^^^
[INFO] [stdout] 577 |     dport: u16,
[INFO] [stdout]     |     ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `_RtaSessionUnionPorts` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `itype`, `code`, and `ident` are never read
[INFO] [stdout]    --> src/rtnetlink.rs:581:5
[INFO] [stdout]     |
[INFO] [stdout] 580 | pub struct _RtaSesseionUnionIcmpt {
[INFO] [stdout]     |            ---------------------- fields in this struct
[INFO] [stdout] 581 |     itype: u8,
[INFO] [stdout]     |     ^^^^^
[INFO] [stdout] 582 |     code: u8,
[INFO] [stdout]     |     ^^^^
[INFO] [stdout] 583 |     ident: u16,
[INFO] [stdout]     |     ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `_RtaSesseionUnionIcmpt` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Vec` is imported redundantly
[INFO] [stdout]  --> examples/netfilter/nf-queue.rs:1:30
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{env, mem, process, vec::Vec};
[INFO] [stdout]   |                              ^^^^^^^^
[INFO] [stdout]  --> /rustc/385fa9d845dd326c6bbfd58c22244215e431948a/library/std/src/prelude/mod.rs:124:13
[INFO] [stdout]   |
[INFO] [stdout]   = note: the item `Vec` is already defined here
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Vec` is imported redundantly
[INFO] [stdout]  --> examples/netfilter/nf-log.rs:1:30
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{env, mem, process, vec::Vec};
[INFO] [stdout]   |                              ^^^^^^^^
[INFO] [stdout]  --> /rustc/385fa9d845dd326c6bbfd58c22244215e431948a/library/std/src/prelude/mod.rs:124:13
[INFO] [stdout]   |
[INFO] [stdout]   = note: the item `Vec` is already defined here
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Vec` is imported redundantly
[INFO] [stdout]  --> examples/rtnl/rtnl-addr-dump.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 |     vec::Vec,
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout]  --> /rustc/385fa9d845dd326c6bbfd58c22244215e431948a/library/std/src/prelude/mod.rs:124:13
[INFO] [stdout]   |
[INFO] [stdout]   = note: the item `Vec` is already defined here
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> examples/rtnl/rtnl-link-set.rs:36:9
[INFO] [stdout]    |
[INFO] [stdout] 36 |     let mut nlh = nlv.put_header();
[INFO] [stdout]    |         ----^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> examples/rtnl/rtnl-neigh-dump.rs:63:9
[INFO] [stdout]    |
[INFO] [stdout] 63 |     let mut nlh = nlv.put_header();
[INFO] [stdout]    |         ----^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> examples/netfilter/nfct-dump.rs:75:9
[INFO] [stdout]    |
[INFO] [stdout] 75 |     let mut nlh = nlv.put_header();
[INFO] [stdout]    |         ----^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> examples/rtnl/rtnl-neigh-dump.rs:72:9
[INFO] [stdout]    |
[INFO] [stdout] 72 |     let mut rt = nlv.put_extra_header::<rtnetlink::Rtgenmsg>().unwrap();
[INFO] [stdout]    |         ----^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> examples/rtnl/rtnl-addr-dump.rs:52:9
[INFO] [stdout]    |
[INFO] [stdout] 52 |     let mut nlh = nlv.put_header();
[INFO] [stdout]    |         ----^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> examples/netfilter/nf-queue.rs:39:9
[INFO] [stdout]    |
[INFO] [stdout] 39 |     let mut nlh = nlv.put_header();
[INFO] [stdout]    |         ----^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> examples/netfilter/nf-queue.rs:59:9
[INFO] [stdout]    |
[INFO] [stdout] 59 |     let mut nlh = nlv.put_header();
[INFO] [stdout]    |         ----^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> examples/netfilter/nf-queue.rs:85:9
[INFO] [stdout]    |
[INFO] [stdout] 85 |     let mut nlh = nlv.put_header();
[INFO] [stdout]    |         ----^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> examples/netfilter/nf-log.rs:45:9
[INFO] [stdout]    |
[INFO] [stdout] 45 |     let mut nlh = nlv.put_header();
[INFO] [stdout]    |         ----^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> examples/netfilter/nf-queue.rs:105:9
[INFO] [stdout]     |
[INFO] [stdout] 105 |     let mut nlh = nlv.put_header();
[INFO] [stdout]     |         ----^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> examples/rtnl/rtnl-link-dump.rs:50:9
[INFO] [stdout]    |
[INFO] [stdout] 50 |     let mut nlh = nlv.put_header();
[INFO] [stdout]    |         ----^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> examples/netfilter/nf-log.rs:61:9
[INFO] [stdout]    |
[INFO] [stdout] 61 |     let mut nlh = nlv.put_header();
[INFO] [stdout]    |         ----^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> examples/netfilter/nf-log.rs:78:9
[INFO] [stdout]    |
[INFO] [stdout] 78 |     let mut nlh = nlv.put_header();
[INFO] [stdout]    |         ----^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> examples/genl/genl-family-get.rs:55:9
[INFO] [stdout]    |
[INFO] [stdout] 55 |     let mut nlh = nlv.put_header();
[INFO] [stdout]    |         ----^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> examples/rtnl/rtnl-route-add.rs:52:9
[INFO] [stdout]    |
[INFO] [stdout] 52 |     let mut nlh = nlv.put_header();
[INFO] [stdout]    |         ----^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> examples/netfilter/nfct-daemon.rs:151:9
[INFO] [stdout]     |
[INFO] [stdout] 151 |     let mut nlh = nlv.put_header();
[INFO] [stdout]     |         ----^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> examples/rtnl/rtnl-route-dump.rs:151:9
[INFO] [stdout]     |
[INFO] [stdout] 151 |     let mut nlh = nlv.put_header();
[INFO] [stdout]     |         ----^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 10.67s
[INFO] running `Command { std: "docker" "inspect" "99acecac61b96c3bffda2e0134eda2e2550594862d5aea8309a6bb4e926467aa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "99acecac61b96c3bffda2e0134eda2e2550594862d5aea8309a6bb4e926467aa", kill_on_drop: false }`
[INFO] [stdout] 99acecac61b96c3bffda2e0134eda2e2550594862d5aea8309a6bb4e926467aa
[INFO] checking rsmnl-linux-0.1.0 against try#2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2 for never-type-fallback-to-never
[INFO] extracting crate rsmnl-linux 0.1.0 into /workspace/builds/worker-2-tc2/source
[INFO] validating manifest of crates.io crate rsmnl-linux 0.1.0 on toolchain 2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate rsmnl-linux 0.1.0
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate rsmnl-linux 0.1.0
[INFO] tweaked toml for crates.io crate rsmnl-linux 0.1.0 written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] crate crates.io crate rsmnl-linux 0.1.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 69b2cd99f14d8844ac6d38cfafeb9210800a1f5ad8fb4c34dd2fdcceb0edbe75
[INFO] running `Command { std: "docker" "start" "-a" "69b2cd99f14d8844ac6d38cfafeb9210800a1f5ad8fb4c34dd2fdcceb0edbe75", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "69b2cd99f14d8844ac6d38cfafeb9210800a1f5ad8fb4c34dd2fdcceb0edbe75", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "69b2cd99f14d8844ac6d38cfafeb9210800a1f5ad8fb4c34dd2fdcceb0edbe75", kill_on_drop: false }`
[INFO] [stdout] 69b2cd99f14d8844ac6d38cfafeb9210800a1f5ad8fb4c34dd2fdcceb0edbe75
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ad4ef91b6ea04933030ab38f29ccb14dd6f60fa8812e46fb06cf5cf4ac4d6c88
[INFO] running `Command { std: "docker" "start" "-a" "ad4ef91b6ea04933030ab38f29ccb14dd6f60fa8812e46fb06cf5cf4ac4d6c88", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.101
[INFO] [stderr]    Compiling proc-macro2 v1.0.29
[INFO] [stderr]    Compiling syn v1.0.75
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]     Checking errno v0.2.7
[INFO] [stderr]     Checking mio v0.7.13
[INFO] [stderr]     Checking rsmnl v0.1.0
[INFO] [stderr]    Compiling rsmnl-derive v0.1.0
[INFO] [stderr]     Checking rsmnl-linux v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `libc` is imported redundantly
[INFO] [stdout]  --> src/neighbour.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use libc;
[INFO] [stdout]   |     ^^^^
[INFO] [stdout]   |
[INFO] [stdout]  ::: src/lib.rs:2:1
[INFO] [stdout]   |
[INFO] [stdout] 2 | extern crate libc;
[INFO] [stdout]   | ------------------ the item `libc` is already imported here
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `libc` is imported redundantly
[INFO] [stdout]  --> src/neighbour.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use libc;
[INFO] [stdout]   |     ^^^^
[INFO] [stdout]   |
[INFO] [stdout]  ::: src/lib.rs:2:1
[INFO] [stdout]   |
[INFO] [stdout] 2 | extern crate libc;
[INFO] [stdout]   | ------------------ the item `libc` is already imported here
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `sport` and `dport` are never read
[INFO] [stdout]    --> src/rtnetlink.rs:576:5
[INFO] [stdout]     |
[INFO] [stdout] 575 | pub struct _RtaSessionUnionPorts {
[INFO] [stdout]     |            --------------------- fields in this struct
[INFO] [stdout] 576 |     sport: u16,
[INFO] [stdout]     |     ^^^^^
[INFO] [stdout] 577 |     dport: u16,
[INFO] [stdout]     |     ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `_RtaSessionUnionPorts` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `itype`, `code`, and `ident` are never read
[INFO] [stdout]    --> src/rtnetlink.rs:581:5
[INFO] [stdout]     |
[INFO] [stdout] 580 | pub struct _RtaSesseionUnionIcmpt {
[INFO] [stdout]     |            ---------------------- fields in this struct
[INFO] [stdout] 581 |     itype: u8,
[INFO] [stdout]     |     ^^^^^
[INFO] [stdout] 582 |     code: u8,
[INFO] [stdout]     |     ^^^^
[INFO] [stdout] 583 |     ident: u16,
[INFO] [stdout]     |     ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `_RtaSesseionUnionIcmpt` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `sport` and `dport` are never read
[INFO] [stdout]    --> src/rtnetlink.rs:576:5
[INFO] [stdout]     |
[INFO] [stdout] 575 | pub struct _RtaSessionUnionPorts {
[INFO] [stdout]     |            --------------------- fields in this struct
[INFO] [stdout] 576 |     sport: u16,
[INFO] [stdout]     |     ^^^^^
[INFO] [stdout] 577 |     dport: u16,
[INFO] [stdout]     |     ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `_RtaSessionUnionPorts` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `itype`, `code`, and `ident` are never read
[INFO] [stdout]    --> src/rtnetlink.rs:581:5
[INFO] [stdout]     |
[INFO] [stdout] 580 | pub struct _RtaSesseionUnionIcmpt {
[INFO] [stdout]     |            ---------------------- fields in this struct
[INFO] [stdout] 581 |     itype: u8,
[INFO] [stdout]     |     ^^^^^
[INFO] [stdout] 582 |     code: u8,
[INFO] [stdout]     |     ^^^^
[INFO] [stdout] 583 |     ident: u16,
[INFO] [stdout]     |     ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `_RtaSesseionUnionIcmpt` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Vec` is imported redundantly
[INFO] [stdout]  --> examples/netfilter/nf-queue.rs:1:30
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{env, mem, process, vec::Vec};
[INFO] [stdout]   |                              ^^^^^^^^
[INFO] [stdout]  --> /rustc/2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2/library/std/src/prelude/mod.rs:124:13
[INFO] [stdout]   |
[INFO] [stdout]   = note: the item `Vec` is already defined here
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Vec` is imported redundantly
[INFO] [stdout]  --> examples/netfilter/nf-log.rs:1:30
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{env, mem, process, vec::Vec};
[INFO] [stdout]   |                              ^^^^^^^^
[INFO] [stdout]  --> /rustc/2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2/library/std/src/prelude/mod.rs:124:13
[INFO] [stdout]   |
[INFO] [stdout]   = note: the item `Vec` is already defined here
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> examples/netfilter/nf-queue.rs:39:9
[INFO] [stdout]    |
[INFO] [stdout] 39 |     let mut nlh = nlv.put_header();
[INFO] [stdout]    |         ----^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> examples/netfilter/nf-queue.rs:59:9
[INFO] [stdout]    |
[INFO] [stdout] 59 |     let mut nlh = nlv.put_header();
[INFO] [stdout]    |         ----^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> examples/netfilter/nf-queue.rs:85:9
[INFO] [stdout]    |
[INFO] [stdout] 85 |     let mut nlh = nlv.put_header();
[INFO] [stdout]    |         ----^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> examples/netfilter/nf-queue.rs:105:9
[INFO] [stdout]     |
[INFO] [stdout] 105 |     let mut nlh = nlv.put_header();
[INFO] [stdout]     |         ----^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> examples/netfilter/nf-log.rs:45:9
[INFO] [stdout]    |
[INFO] [stdout] 45 |     let mut nlh = nlv.put_header();
[INFO] [stdout]    |         ----^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> examples/rtnl/rtnl-link-dump.rs:50:9
[INFO] [stdout]    |
[INFO] [stdout] 50 |     let mut nlh = nlv.put_header();
[INFO] [stdout]    |         ----^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> examples/netfilter/nf-log.rs:61:9
[INFO] [stdout]    |
[INFO] [stdout] 61 |     let mut nlh = nlv.put_header();
[INFO] [stdout]    |         ----^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> examples/netfilter/nf-log.rs:78:9
[INFO] [stdout]    |
[INFO] [stdout] 78 |     let mut nlh = nlv.put_header();
[INFO] [stdout]    |         ----^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Vec` is imported redundantly
[INFO] [stdout]  --> examples/rtnl/rtnl-addr-dump.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 |     vec::Vec,
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout]  --> /rustc/2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2/library/std/src/prelude/mod.rs:124:13
[INFO] [stdout]   |
[INFO] [stdout]   = note: the item `Vec` is already defined here
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> examples/rtnl/rtnl-link-set.rs:36:9
[INFO] [stdout]    |
[INFO] [stdout] 36 |     let mut nlh = nlv.put_header();
[INFO] [stdout]    |         ----^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> examples/rtnl/rtnl-route-add.rs:52:9
[INFO] [stdout]    |
[INFO] [stdout] 52 |     let mut nlh = nlv.put_header();
[INFO] [stdout]    |         ----^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> examples/rtnl/rtnl-neigh-dump.rs:63:9
[INFO] [stdout]    |
[INFO] [stdout] 63 |     let mut nlh = nlv.put_header();
[INFO] [stdout]    |         ----^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> examples/rtnl/rtnl-neigh-dump.rs:72:9
[INFO] [stdout]    |
[INFO] [stdout] 72 |     let mut rt = nlv.put_extra_header::<rtnetlink::Rtgenmsg>().unwrap();
[INFO] [stdout]    |         ----^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> examples/netfilter/nfct-daemon.rs:151:9
[INFO] [stdout]     |
[INFO] [stdout] 151 |     let mut nlh = nlv.put_header();
[INFO] [stdout]     |         ----^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> examples/genl/genl-family-get.rs:55:9
[INFO] [stdout]    |
[INFO] [stdout] 55 |     let mut nlh = nlv.put_header();
[INFO] [stdout]    |         ----^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> examples/rtnl/rtnl-route-dump.rs:151:9
[INFO] [stdout]     |
[INFO] [stdout] 151 |     let mut nlh = nlv.put_header();
[INFO] [stdout]     |         ----^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> examples/rtnl/rtnl-addr-dump.rs:52:9
[INFO] [stdout]    |
[INFO] [stdout] 52 |     let mut nlh = nlv.put_header();
[INFO] [stdout]    |         ----^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> examples/netfilter/nfct-dump.rs:75:9
[INFO] [stdout]    |
[INFO] [stdout] 75 |     let mut nlh = nlv.put_header();
[INFO] [stdout]    |         ----^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 8.93s
[INFO] running `Command { std: "docker" "inspect" "ad4ef91b6ea04933030ab38f29ccb14dd6f60fa8812e46fb06cf5cf4ac4d6c88", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ad4ef91b6ea04933030ab38f29ccb14dd6f60fa8812e46fb06cf5cf4ac4d6c88", kill_on_drop: false }`
[INFO] [stdout] ad4ef91b6ea04933030ab38f29ccb14dd6f60fa8812e46fb06cf5cf4ac4d6c88