[INFO] fetching crate narc 0.1.1...
[INFO] testing narc-0.1.1 against master#a77da2d454e6caa227a85b16410b95f93495e7e0 for pr-91031
[INFO] extracting crate narc 0.1.1 into /workspace/builds/worker-12/source
[INFO] validating manifest of crates.io crate narc 0.1.1 on toolchain a77da2d454e6caa227a85b16410b95f93495e7e0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate narc 0.1.1
[INFO] finished tweaking crates.io crate narc 0.1.1
[INFO] tweaked toml for crates.io crate narc 0.1.1 written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] d7183942283a44411753c89e37a2bcf4052e2fd53aef2e1a582f984bd1839f8c
[INFO] running `Command { std: "docker" "start" "-a" "d7183942283a44411753c89e37a2bcf4052e2fd53aef2e1a582f984bd1839f8c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d7183942283a44411753c89e37a2bcf4052e2fd53aef2e1a582f984bd1839f8c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d7183942283a44411753c89e37a2bcf4052e2fd53aef2e1a582f984bd1839f8c", kill_on_drop: false }`
[INFO] [stdout] d7183942283a44411753c89e37a2bcf4052e2fd53aef2e1a582f984bd1839f8c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b71f9868021918c1156626ea281ab600dc50e6865c62009997204c1a485bec34
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "b71f9868021918c1156626ea281ab600dc50e6865c62009997204c1a485bec34", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling libc v0.2.107
[INFO] [stderr]    Compiling crossbeam-utils v0.8.5
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.5
[INFO] [stderr]    Compiling rayon-core v1.9.1
[INFO] [stderr]    Compiling scopeguard v1.1.0
[INFO] [stderr]    Compiling either v1.6.1
[INFO] [stderr]    Compiling proc-macro2 v1.0.32
[INFO] [stderr]    Compiling memoffset v0.6.4
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling miniz_oxide v0.4.4
[INFO] [stderr]    Compiling num-iter v0.1.42
[INFO] [stderr]    Compiling num-rational v0.2.4
[INFO] [stderr]    Compiling rayon v1.5.1
[INFO] [stderr]    Compiling num-complex v0.2.4
[INFO] [stderr]    Compiling crossbeam-channel v0.5.1
[INFO] [stderr]    Compiling quote v1.0.10
[INFO] [stderr]    Compiling syn v1.0.81
[INFO] [stderr]    Compiling crossbeam-deque v0.8.1
[INFO] [stderr]    Compiling num_cpus v1.13.0
[INFO] [stderr]    Compiling backtrace v0.3.63
[INFO] [stderr]    Compiling memmap v0.7.0
[INFO] [stderr]    Compiling num v0.2.1
[INFO] [stderr]    Compiling synstructure v0.12.6
[INFO] [stderr]    Compiling failure_derive v0.1.8
[INFO] [stderr]    Compiling failure v0.1.8
[INFO] [stderr]    Compiling nitro_fs v0.1.1
[INFO] [stderr]    Compiling narc v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `bail`
[INFO] [stdout]  --> src/extract.rs:2:15
[INFO] [stdout]   |
[INFO] [stdout] 2 | use failure::{bail, ensure, Error};
[INFO] [stdout]   |               ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `fat`
[INFO] [stdout]   --> src/extract.rs:52:13
[INFO] [stdout]    |
[INFO] [stdout] 52 |         let fat = &self.data[fat_offset..fat_offset + file_count * 8];
[INFO] [stdout]    |             ^^^ help: if this is intentional, prefix it with an underscore: `_fat`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `read_u32`
[INFO] [stdout]   --> src/extract.rs:81:8
[INFO] [stdout]    |
[INFO] [stdout] 81 |     fn read_u32(&self, offset: usize) -> Result<u32, Error> {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 39.02s
[INFO] running `Command { std: "docker" "inspect" "b71f9868021918c1156626ea281ab600dc50e6865c62009997204c1a485bec34", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b71f9868021918c1156626ea281ab600dc50e6865c62009997204c1a485bec34", kill_on_drop: false }`
[INFO] [stdout] b71f9868021918c1156626ea281ab600dc50e6865c62009997204c1a485bec34
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c61f1ce347c992a9117111e32606837b0a296cabbfa00039a4921dca69c56108
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "c61f1ce347c992a9117111e32606837b0a296cabbfa00039a4921dca69c56108", kill_on_drop: false }`
[INFO] [stderr]    Compiling narc v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `bail`
[INFO] [stdout]  --> src/extract.rs:2:15
[INFO] [stdout]   |
[INFO] [stdout] 2 | use failure::{bail, ensure, Error};
[INFO] [stdout]   |               ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `fat`
[INFO] [stdout]   --> src/extract.rs:52:13
[INFO] [stdout]    |
[INFO] [stdout] 52 |         let fat = &self.data[fat_offset..fat_offset + file_count * 8];
[INFO] [stdout]    |             ^^^ help: if this is intentional, prefix it with an underscore: `_fat`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `read_u32`
[INFO] [stdout]   --> src/extract.rs:81:8
[INFO] [stdout]    |
[INFO] [stdout] 81 |     fn read_u32(&self, offset: usize) -> Result<u32, Error> {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `bail`
[INFO] [stdout]  --> src/extract.rs:2:15
[INFO] [stdout]   |
[INFO] [stdout] 2 | use failure::{bail, ensure, Error};
[INFO] [stdout]   |               ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `fat`
[INFO] [stdout]   --> src/extract.rs:52:13
[INFO] [stdout]    |
[INFO] [stdout] 52 |         let fat = &self.data[fat_offset..fat_offset + file_count * 8];
[INFO] [stdout]    |             ^^^ help: if this is intentional, prefix it with an underscore: `_fat`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `read_u32`
[INFO] [stdout]   --> src/extract.rs:81:8
[INFO] [stdout]    |
[INFO] [stdout] 81 |     fn read_u32(&self, offset: usize) -> Result<u32, Error> {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.02s
[INFO] running `Command { std: "docker" "inspect" "c61f1ce347c992a9117111e32606837b0a296cabbfa00039a4921dca69c56108", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c61f1ce347c992a9117111e32606837b0a296cabbfa00039a4921dca69c56108", kill_on_drop: false }`
[INFO] [stdout] c61f1ce347c992a9117111e32606837b0a296cabbfa00039a4921dca69c56108
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] c3eadaf2c135c7cd72f085ca6a32e3e1152aa2dcba51d35e7cfa12e3aed58606
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "c3eadaf2c135c7cd72f085ca6a32e3e1152aa2dcba51d35e7cfa12e3aed58606", kill_on_drop: false }`
[INFO] [stderr] warning: unused import: `bail`
[INFO] [stderr]  --> src/extract.rs:2:15
[INFO] [stderr]   |
[INFO] [stderr] 2 | use failure::{bail, ensure, Error};
[INFO] [stderr]   |               ^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `fat`
[INFO] [stderr]   --> src/extract.rs:52:13
[INFO] [stderr]    |
[INFO] [stderr] 52 |         let fat = &self.data[fat_offset..fat_offset + file_count * 8];
[INFO] [stderr]    |             ^^^ help: if this is intentional, prefix it with an underscore: `_fat`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `read_u32`
[INFO] [stderr]   --> src/extract.rs:81:8
[INFO] [stderr]    |
[INFO] [stderr] 81 |     fn read_u32(&self, offset: usize) -> Result<u32, Error> {
[INFO] [stderr]    |        ^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `narc` (lib) generated 3 warnings
[INFO] [stderr] warning: `narc` (lib test) generated 3 warnings (3 duplicates)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.10s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/narc-b93b217df7adf623)
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests narc
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "c3eadaf2c135c7cd72f085ca6a32e3e1152aa2dcba51d35e7cfa12e3aed58606", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c3eadaf2c135c7cd72f085ca6a32e3e1152aa2dcba51d35e7cfa12e3aed58606", kill_on_drop: false }`
[INFO] [stdout] c3eadaf2c135c7cd72f085ca6a32e3e1152aa2dcba51d35e7cfa12e3aed58606