[INFO] fetching crate m 0.1.1...
[INFO] testing m-0.1.1 against 1.49.0 for beta-1.50-1
[INFO] extracting crate m 0.1.1 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate m 0.1.1 on toolchain 1.49.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate m 0.1.1
[INFO] finished tweaking crates.io crate m 0.1.1
[INFO] tweaked toml for crates.io crate m 0.1.1 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.49.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "rustops/crates-build-env@sha256:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "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] 18ee5f9d20d674fecb677080edb2d4d144210920c96fdb30a101b34bd125ebe2
[INFO] running `Command { std: "docker" "start" "-a" "18ee5f9d20d674fecb677080edb2d4d144210920c96fdb30a101b34bd125ebe2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "18ee5f9d20d674fecb677080edb2d4d144210920c96fdb30a101b34bd125ebe2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "18ee5f9d20d674fecb677080edb2d4d144210920c96fdb30a101b34bd125ebe2", kill_on_drop: false }`
[INFO] [stdout] 18ee5f9d20d674fecb677080edb2d4d144210920c96fdb30a101b34bd125ebe2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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=warn" "-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" "rustops/crates-build-env@sha256:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 405925af8c067143300c11afdf027cdf508f852d9bd879224037a59944be7046
[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" "405925af8c067143300c11afdf027cdf508f852d9bd879224037a59944be7046", kill_on_drop: false }`
[INFO] [stderr]    Compiling m v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unknown lint: `many_single_char_names`
[INFO] [stdout]    --> src/ll.rs:132:14
[INFO] [stdout]     |
[INFO] [stdout] 132 |     #![allow(many_single_char_names)]
[INFO] [stdout]     |              ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unknown_lints)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unknown lint: `if_same_then_else`
[INFO] [stdout]    --> src/ll.rs:134:14
[INFO] [stdout]     |
[INFO] [stdout] 134 |     #![allow(if_same_then_else)]
[INFO] [stdout]     |              ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unknown lint: `many_single_char_names`
[INFO] [stdout]    --> src/ll.rs:241:14
[INFO] [stdout]     |
[INFO] [stdout] 241 |     #![allow(many_single_char_names)]
[INFO] [stdout]     |              ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unknown lint: `eq_op`
[INFO] [stdout]    --> src/ll.rs:242:14
[INFO] [stdout]     |
[INFO] [stdout] 242 |     #![allow(eq_op)]
[INFO] [stdout]     |              ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.48s
[INFO] running `Command { std: "docker" "inspect" "405925af8c067143300c11afdf027cdf508f852d9bd879224037a59944be7046", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "405925af8c067143300c11afdf027cdf508f852d9bd879224037a59944be7046", kill_on_drop: false }`
[INFO] [stdout] 405925af8c067143300c11afdf027cdf508f852d9bd879224037a59944be7046
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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=warn" "-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" "rustops/crates-build-env@sha256:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e8b768c19ec7619900180fe121938078e9df37bdd7703f21abce99f98645a26b
[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" "e8b768c19ec7619900180fe121938078e9df37bdd7703f21abce99f98645a26b", kill_on_drop: false }`
[INFO] [stdout] warning: unknown lint: `many_single_char_names`
[INFO] [stdout]    --> src/ll.rs:132:14
[INFO] [stdout]     |
[INFO] [stdout] 132 |     #![allow(many_single_char_names)]
[INFO] [stdout]     |              ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unknown_lints)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling memchr v0.1.11
[INFO] [stdout] warning: unknown lint: `if_same_then_else`
[INFO] [stdout]    --> src/ll.rs:134:14
[INFO] [stdout]     |
[INFO] [stdout] 134 |     #![allow(if_same_then_else)]
[INFO] [stdout]     |              ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling thread-id v2.0.0
[INFO] [stdout] warning: unknown lint: `many_single_char_names`
[INFO] [stdout]    --> src/ll.rs:241:14
[INFO] [stdout]     |
[INFO] [stdout] 241 |     #![allow(many_single_char_names)]
[INFO] [stdout]     |              ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unknown lint: `eq_op`
[INFO] [stdout]    --> src/ll.rs:242:14
[INFO] [stdout]     |
[INFO] [stdout] 242 |     #![allow(eq_op)]
[INFO] [stdout]     |              ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling thread_local v0.2.7
[INFO] [stderr]    Compiling aho-corasick v0.5.3
[INFO] [stderr]    Compiling regex v0.1.80
[INFO] [stderr]    Compiling env_logger v0.3.5
[INFO] [stderr]    Compiling quickcheck v0.3.2
[INFO] [stderr]    Compiling m v0.1.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unknown lint: `many_single_char_names`
[INFO] [stdout]    --> src/ll.rs:132:14
[INFO] [stdout]     |
[INFO] [stdout] 132 |     #![allow(many_single_char_names)]
[INFO] [stdout]     |              ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unknown_lints)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unknown lint: `if_same_then_else`
[INFO] [stdout]    --> src/ll.rs:134:14
[INFO] [stdout]     |
[INFO] [stdout] 134 |     #![allow(if_same_then_else)]
[INFO] [stdout]     |              ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unknown lint: `many_single_char_names`
[INFO] [stdout]    --> src/ll.rs:241:14
[INFO] [stdout]     |
[INFO] [stdout] 241 |     #![allow(many_single_char_names)]
[INFO] [stdout]     |              ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unknown lint: `eq_op`
[INFO] [stdout]    --> src/ll.rs:242:14
[INFO] [stdout]     |
[INFO] [stdout] 242 |     #![allow(eq_op)]
[INFO] [stdout]     |              ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `#[macro_use]` import
[INFO] [stdout]   --> src/lib.rs:44:1
[INFO] [stdout]    |
[INFO] [stdout] 44 | #[macro_use]
[INFO] [stdout]    | ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]   --> src/lib.rs:38:9
[INFO] [stdout]    |
[INFO] [stdout] 38 | #![deny(warnings)]
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout]    = note: `#[warn(unused_imports)]` implied by `#[warn(warnings)]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 10.33s
[INFO] running `Command { std: "docker" "inspect" "e8b768c19ec7619900180fe121938078e9df37bdd7703f21abce99f98645a26b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e8b768c19ec7619900180fe121938078e9df37bdd7703f21abce99f98645a26b", kill_on_drop: false }`
[INFO] [stdout] e8b768c19ec7619900180fe121938078e9df37bdd7703f21abce99f98645a26b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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=warn" "-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" "rustops/crates-build-env@sha256:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+1.49.0" "test" "--frozen", 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] d104e55717d47e5485480816e0d4751420e37edfed10a8d233241921ede11665
[INFO] running `Command { std: "docker" "start" "-a" "d104e55717d47e5485480816e0d4751420e37edfed10a8d233241921ede11665", kill_on_drop: false }`
[INFO] [stderr] warning: unknown lint: `many_single_char_names`
[INFO] [stderr]    --> src/ll.rs:132:14
[INFO] [stderr]     |
[INFO] [stderr] 132 |     #![allow(many_single_char_names)]
[INFO] [stderr]     |              ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unknown_lints)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unknown lint: `if_same_then_else`
[INFO] [stderr]    --> src/ll.rs:134:14
[INFO] [stderr]     |
[INFO] [stderr] 134 |     #![allow(if_same_then_else)]
[INFO] [stderr]     |              ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unknown lint: `many_single_char_names`
[INFO] [stderr]    --> src/ll.rs:241:14
[INFO] [stderr]     |
[INFO] [stderr] 241 |     #![allow(many_single_char_names)]
[INFO] [stderr]     |              ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unknown lint: `eq_op`
[INFO] [stderr]    --> src/ll.rs:242:14
[INFO] [stderr]     |
[INFO] [stderr] 242 |     #![allow(eq_op)]
[INFO] [stderr]     |              ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 4 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: unknown lint: `many_single_char_names`
[INFO] [stderr]    --> src/ll.rs:132:14
[INFO] [stderr]     |
[INFO] [stderr] 132 |     #![allow(many_single_char_names)]
[INFO] [stderr]     |              ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unknown_lints)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unknown lint: `if_same_then_else`
[INFO] [stderr]    --> src/ll.rs:134:14
[INFO] [stderr]     |
[INFO] [stderr] 134 |     #![allow(if_same_then_else)]
[INFO] [stderr]     |              ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unknown lint: `many_single_char_names`
[INFO] [stderr]    --> src/ll.rs:241:14
[INFO] [stderr]     |
[INFO] [stderr] 241 |     #![allow(many_single_char_names)]
[INFO] [stderr]     |              ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unknown lint: `eq_op`
[INFO] [stderr]    --> src/ll.rs:242:14
[INFO] [stderr]     |
[INFO] [stderr] 242 |     #![allow(eq_op)]
[INFO] [stderr]     |              ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused `#[macro_use]` import
[INFO] [stderr]   --> src/lib.rs:44:1
[INFO] [stderr]    |
[INFO] [stderr] 44 | #[macro_use]
[INFO] [stderr]    | ^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr] note: the lint level is defined here
[INFO] [stderr]   --> src/lib.rs:38:9
[INFO] [stderr]    |
[INFO] [stderr] 38 | #![deny(warnings)]
[INFO] [stderr]    |         ^^^^^^^^
[INFO] [stderr]    = note: `#[warn(unused_imports)]` implied by `#[warn(warnings)]`
[INFO] [stderr] 
[INFO] [stderr] warning: 5 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.07s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/m-e25af5a8c1c2f209
[INFO] [stdout] 
[INFO] [stdout] running 5 tests
[INFO] [stdout] test ll::tests::fabsf ... ok
[INFO] [stdout] test ll::tests::atanf ... ok
[INFO] [stdout] test ll::tests::fabs ... ok
[INFO] [stdout] test ll::tests::sqrtf ... ok
[INFO] [stdout] test ll::tests::atan2f ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 5 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests m
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/lib.rs - (line 14) ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- src/lib.rs - (line 14) stdout ----
[INFO] [stdout] error[E0601]: `main` function not found in crate `rust_out`
[INFO] [stdout]  --> src/lib.rs:13:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | / #![allow(unused)]
[INFO] [stdout] 2 | | #![no_std]
[INFO] [stdout] 3 | |
[INFO] [stdout] 4 | | extern crate m;
[INFO] [stdout] ... |
[INFO] [stdout] 8 | |     x.atan()
[INFO] [stdout] 9 | | }
[INFO] [stdout]   | |_^ consider adding a `main` function at the crate level
[INFO] [stdout] 
[INFO] [stdout] error: `#[panic_handler]` function required, but not found
[INFO] [stdout] 
[INFO] [stdout] error: language item required, but not found: `eh_personality`
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 3 previous errors
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0601`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     src/lib.rs - (line 14)
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 0 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr] error: test failed, to rerun pass '--doc'
[INFO] running `Command { std: "docker" "inspect" "d104e55717d47e5485480816e0d4751420e37edfed10a8d233241921ede11665", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d104e55717d47e5485480816e0d4751420e37edfed10a8d233241921ede11665", kill_on_drop: false }`
[INFO] [stdout] d104e55717d47e5485480816e0d4751420e37edfed10a8d233241921ede11665