[INFO] fetching crate samotop-core 0.13.1+smtp...
[INFO] checking samotop-core-0.13.1+smtp against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] extracting crate samotop-core 0.13.1+smtp into /workspace/builds/worker-5-tc1/source
[INFO] validating manifest of crates.io crate samotop-core 0.13.1+smtp 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 samotop-core 0.13.1+smtp
[INFO] finished tweaking crates.io crate samotop-core 0.13.1+smtp
[INFO] tweaked toml for crates.io crate samotop-core 0.13.1+smtp written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]      Locking 105 packages
[INFO] [stderr]       Adding async-channel v1.9.0 (latest: v2.2.0)
[INFO] [stderr]       Adding async-io v1.13.0 (latest: v2.3.2)
[INFO] [stderr]       Adding async-lock v2.8.0 (latest: v3.3.0)
[INFO] [stderr]       Adding bitflags v1.3.2 (latest: v2.5.0)
[INFO] [stderr]       Adding encode_unicode v0.3.6 (latest: v1.0.0)
[INFO] [stderr]       Adding event-listener v2.5.3 (latest: v5.3.0)
[INFO] [stderr]       Adding event-listener v4.0.3 (latest: v5.3.0)
[INFO] [stderr]       Adding event-listener-strategy v0.4.0 (latest: v0.5.1)
[INFO] [stderr]       Adding fastrand v1.9.0 (latest: v2.0.2)
[INFO] [stderr]       Adding futures-lite v1.13.0 (latest: v2.3.0)
[INFO] [stderr]       Adding gloo-timers v0.2.6 (latest: v0.3.0)
[INFO] [stderr]       Adding io-lifetimes v1.0.11 (latest: v2.0.3)
[INFO] [stderr]       Adding linux-raw-sys v0.3.8 (latest: v0.6.4)
[INFO] [stderr]       Adding linux-raw-sys v0.4.13 (latest: v0.6.4)
[INFO] [stderr]       Adding pin-project-lite v0.1.12 (latest: v0.2.14)
[INFO] [stderr]       Adding polling v2.8.0 (latest: v3.6.0)
[INFO] [stderr]       Adding rustix v0.37.27 (latest: v0.38.32)
[INFO] [stderr]       Adding socket2 v0.4.10 (latest: v0.5.6)
[INFO] [stderr]       Adding windows-sys v0.48.0 (latest: v0.52.0)
[INFO] [stderr]       Adding windows-targets v0.48.5 (latest: v0.52.4)
[INFO] [stderr]       Adding windows_aarch64_gnullvm v0.48.5 (latest: v0.52.4)
[INFO] [stderr]       Adding windows_aarch64_msvc v0.48.5 (latest: v0.52.4)
[INFO] [stderr]       Adding windows_i686_gnu v0.48.5 (latest: v0.52.4)
[INFO] [stderr]       Adding windows_i686_msvc v0.48.5 (latest: v0.52.4)
[INFO] [stderr]       Adding windows_x86_64_gnu v0.48.5 (latest: v0.52.4)
[INFO] [stderr]       Adding windows_x86_64_gnullvm v0.48.5 (latest: v0.52.4)
[INFO] [stderr]       Adding windows_x86_64_msvc v0.48.5 (latest: v0.52.4)
[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]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded smol-timeout v0.6.0
[INFO] [stderr]   Downloaded insta v1.38.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] 4acd09d45f6b528bf1169968c466fd803ba7b8adcbb8183fd66ac05f63d4dec0
[INFO] running `Command { std: "docker" "start" "-a" "4acd09d45f6b528bf1169968c466fd803ba7b8adcbb8183fd66ac05f63d4dec0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4acd09d45f6b528bf1169968c466fd803ba7b8adcbb8183fd66ac05f63d4dec0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4acd09d45f6b528bf1169968c466fd803ba7b8adcbb8183fd66ac05f63d4dec0", kill_on_drop: false }`
[INFO] [stdout] 4acd09d45f6b528bf1169968c466fd803ba7b8adcbb8183fd66ac05f63d4dec0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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] b159824d557f3c34c3212b296fed6817d661ff586e9aeb408b6fddd52381a19e
[INFO] running `Command { std: "docker" "start" "-a" "b159824d557f3c34c3212b296fed6817d661ff586e9aeb408b6fddd52381a19e", kill_on_drop: false }`
[INFO] [stderr]     Checking console v0.15.8
[INFO] [stderr]     Checking similar v2.5.0
[INFO] [stderr]     Checking samotop-core v0.13.1+smtp (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `fmt` is imported redundantly
[INFO] [stdout]  --> src/io/tls/stream.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use crate::common::*;
[INFO] [stdout]   |     ---------------- the item `fmt` is already imported here
[INFO] [stdout] 3 | use core::panic;
[INFO] [stdout] 4 | use std::fmt;
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `fmt` is imported redundantly
[INFO] [stdout]  --> src/mail/logger.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 4 |     common::*,
[INFO] [stdout]   |     --------- the item `fmt` is already imported here
[INFO] [stdout] ...
[INFO] [stdout] 9 | use std::fmt;
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `fmt` is imported redundantly
[INFO] [stdout]  --> src/smtp/interpretter.rs:6:11
[INFO] [stdout]   |
[INFO] [stdout] 2 |     common::*,
[INFO] [stdout]   |     --------- the item `fmt` is already imported here
[INFO] [stdout] ...
[INFO] [stdout] 6 |     fmt::{self, Debug},
[INFO] [stdout]   |           ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `self::rfc5321::*`
[INFO] [stdout]   --> src/smtp/mod.rs:33:9
[INFO] [stdout]    |
[INFO] [stdout] 33 | pub use self::rfc5321::*;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: private item shadows public glob re-export
[INFO] [stdout]   --> src/lib.rs:54:5
[INFO] [stdout]    |
[INFO] [stdout] 54 | /     struct PollFn<F> {
[INFO] [stdout] 55 | |         f: F,
[INFO] [stdout] 56 | |     }
[INFO] [stdout]    | |_____^
[INFO] [stdout]    |
[INFO] [stdout] note: the name `PollFn` in the type namespace is supposed to be publicly re-exported here
[INFO] [stdout]   --> src/lib.rs:27:13
[INFO] [stdout]    |
[INFO] [stdout] 27 |     pub use std::future::*;
[INFO] [stdout]    |             ^^^^^^^^^^^^^^
[INFO] [stdout] note: but the private item here shadows it
[INFO] [stdout]   --> src/lib.rs:54:5
[INFO] [stdout]    |
[INFO] [stdout] 54 | /     struct PollFn<F> {
[INFO] [stdout] 55 | |         f: F,
[INFO] [stdout] 56 | |     }
[INFO] [stdout]    | |_____^
[INFO] [stdout]    = note: `#[warn(hidden_glob_reexports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/smtp/context.rs:88:15
[INFO] [stdout]    |
[INFO] [stdout] 88 |             T(&'a str),
[INFO] [stdout]    |             - ^^^^^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 88 |             T(()),
[INFO] [stdout]    |               ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/smtp/context.rs:89:15
[INFO] [stdout]    |
[INFO] [stdout] 89 |             B(&'a [u8]),
[INFO] [stdout]    |             - ^^^^^^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             field in this variant
[INFO] [stdout]    |
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 89 |             B(()),
[INFO] [stdout]    |               ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking insta v1.38.0
[INFO] [stdout] warning: 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `insta::assert_display_snapshot`: use assert_snapshot!() instead
[INFO] [stdout]   --> src/io/connection.rs:67:9
[INFO] [stdout]    |
[INFO] [stdout] 67 | ...   insta::assert_display_snapshot!(dump, @"connection id --redaced-- from peer Unknown to local Unknown established --redaced--.--reda...
[INFO] [stdout]    |       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `fmt` is imported redundantly
[INFO] [stdout]  --> src/io/tls/stream.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use crate::common::*;
[INFO] [stdout]   |     ---------------- the item `fmt` is already imported here
[INFO] [stdout] 3 | use core::panic;
[INFO] [stdout] 4 | use std::fmt;
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `fmt` is imported redundantly
[INFO] [stdout]  --> src/mail/logger.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 4 |     common::*,
[INFO] [stdout]   |     --------- the item `fmt` is already imported here
[INFO] [stdout] ...
[INFO] [stdout] 9 | use std::fmt;
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `insta::assert_display_snapshot`: use assert_snapshot!() instead
[INFO] [stdout]    --> src/smtp/context.rs:123:9
[INFO] [stdout]     |
[INFO] [stdout] 123 |         insta::assert_display_snapshot!(dump0, @r###"SessionLogger"###);
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `insta::assert_display_snapshot`: use assert_snapshot!() instead
[INFO] [stdout]    --> src/smtp/context.rs:137:9
[INFO] [stdout]     |
[INFO] [stdout] 137 |         insta::assert_display_snapshot!(dump, @r###"
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `fmt` is imported redundantly
[INFO] [stdout]  --> src/smtp/interpretter.rs:6:11
[INFO] [stdout]   |
[INFO] [stdout] 2 |     common::*,
[INFO] [stdout]   |     --------- the item `fmt` is already imported here
[INFO] [stdout] ...
[INFO] [stdout] 6 |     fmt::{self, Debug},
[INFO] [stdout]   |           ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Dummy` is imported redundantly
[INFO] [stdout]    --> src/smtp/interpretter.rs:228:9
[INFO] [stdout]     |
[INFO] [stdout] 227 |     use super::*;
[INFO] [stdout]     |         -------- the item `Dummy` is already imported here
[INFO] [stdout] 228 |     use crate::common::Dummy;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `SmtpMail` is imported redundantly
[INFO] [stdout]   --> src/smtp/rfc5321/mail.rs:50:16
[INFO] [stdout]    |
[INFO] [stdout] 47 |     use super::*;
[INFO] [stdout]    |         -------- the item `SmtpMail` is already imported here
[INFO] [stdout] ...
[INFO] [stdout] 50 |         smtp::{command::SmtpMail, DriverControl, Esmtp, SmtpPath},
[INFO] [stdout]    |                ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Esmtp` is imported redundantly
[INFO] [stdout]   --> src/smtp/rfc5321/mail.rs:50:50
[INFO] [stdout]    |
[INFO] [stdout] 47 |     use super::*;
[INFO] [stdout]    |         -------- the item `Esmtp` is already imported here
[INFO] [stdout] ...
[INFO] [stdout] 50 |         smtp::{command::SmtpMail, DriverControl, Esmtp, SmtpPath},
[INFO] [stdout]    |                                                  ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `SmtpContext` is imported redundantly
[INFO] [stdout]   --> src/smtp/rfc5321/unknown.rs:28:50
[INFO] [stdout]    |
[INFO] [stdout] 25 |     use super::*;
[INFO] [stdout]    |         -------- the item `SmtpContext` is already imported here
[INFO] [stdout] ...
[INFO] [stdout] 28 |         smtp::{command::SmtpMail, DriverControl, SmtpContext, SmtpPath},
[INFO] [stdout]    |                                                  ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `SmtpPath` is imported redundantly
[INFO] [stdout]    --> src/smtp/session.rs:241:35
[INFO] [stdout]     |
[INFO] [stdout] 238 |     use super::*;
[INFO] [stdout]     |         -------- the item `SmtpPath` is already imported here
[INFO] [stdout] ...
[INFO] [stdout] 241 |         smtp::{command::SmtpMail, SmtpPath},
[INFO] [stdout]     |                                   ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `self::rfc5321::*`
[INFO] [stdout]   --> src/smtp/mod.rs:33:9
[INFO] [stdout]    |
[INFO] [stdout] 33 | pub use self::rfc5321::*;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: private item shadows public glob re-export
[INFO] [stdout]   --> src/lib.rs:54:5
[INFO] [stdout]    |
[INFO] [stdout] 54 | /     struct PollFn<F> {
[INFO] [stdout] 55 | |         f: F,
[INFO] [stdout] 56 | |     }
[INFO] [stdout]    | |_____^
[INFO] [stdout]    |
[INFO] [stdout] note: the name `PollFn` in the type namespace is supposed to be publicly re-exported here
[INFO] [stdout]   --> src/lib.rs:27:13
[INFO] [stdout]    |
[INFO] [stdout] 27 |     pub use std::future::*;
[INFO] [stdout]    |             ^^^^^^^^^^^^^^
[INFO] [stdout] note: but the private item here shadows it
[INFO] [stdout]   --> src/lib.rs:54:5
[INFO] [stdout]    |
[INFO] [stdout] 54 | /     struct PollFn<F> {
[INFO] [stdout] 55 | |         f: F,
[INFO] [stdout] 56 | |     }
[INFO] [stdout]    | |_____^
[INFO] [stdout]    = note: `#[warn(hidden_glob_reexports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `TestSetup` is never constructed
[INFO] [stdout]   --> src/mail/setup.rs:73:12
[INFO] [stdout]    |
[INFO] [stdout] 73 |     struct TestSetup;
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/smtp/context.rs:88:15
[INFO] [stdout]    |
[INFO] [stdout] 88 |             T(&'a str),
[INFO] [stdout]    |             - ^^^^^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             field in this variant
[INFO] [stdout]    |
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 88 |             T(()),
[INFO] [stdout]    |               ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/smtp/context.rs:89:15
[INFO] [stdout]    |
[INFO] [stdout] 89 |             B(&'a [u8]),
[INFO] [stdout]    |             - ^^^^^^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             field in this variant
[INFO] [stdout]    |
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 89 |             B(()),
[INFO] [stdout]    |               ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 16 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.51s
[INFO] running `Command { std: "docker" "inspect" "b159824d557f3c34c3212b296fed6817d661ff586e9aeb408b6fddd52381a19e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b159824d557f3c34c3212b296fed6817d661ff586e9aeb408b6fddd52381a19e", kill_on_drop: false }`
[INFO] [stdout] b159824d557f3c34c3212b296fed6817d661ff586e9aeb408b6fddd52381a19e