[INFO] fetching crate oscen 0.1.4...
[INFO] checking oscen-0.1.4 against try#a4980311fb7bb9e7893708e6bd3fbbfb2819fd3d for pr-145342-1
[INFO] extracting crate oscen 0.1.4 into /workspace/builds/worker-3-tc2/source
[INFO] started tweaking crates.io crate oscen 0.1.4
[INFO] finished tweaking crates.io crate oscen 0.1.4
[INFO] tweaked toml for crates.io crate oscen 0.1.4 written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate oscen 0.1.4 on toolchain a4980311fb7bb9e7893708e6bd3fbbfb2819fd3d
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+a4980311fb7bb9e7893708e6bd3fbbfb2819fd3d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+a4980311fb7bb9e7893708e6bd3fbbfb2819fd3d" "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 73 packages to latest compatible versions
[INFO] [stderr]       Adding approx v0.3.2 (available: v0.5.1)
[INFO] [stderr]       Adding crossbeam v0.7.3 (available: v0.8.4)
[INFO] [stderr]       Adding midir v0.5.0 (available: v0.10.2)
[INFO] [stderr]       Adding num v0.2.1 (available: v0.4.3)
[INFO] [stderr]       Adding rand v0.7.3 (available: v0.9.2)
[INFO] [stderr]       Adding rand_distr v0.2.2 (available: v0.5.1)
[INFO] [stderr]       Adding uuid v0.8.2 (available: v1.18.0)
[INFO] [stderr]       Adding wasi v0.10.0+wasi-snapshot-preview1 (available: v0.10.2+wasi-snapshot-preview1)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+a4980311fb7bb9e7893708e6bd3fbbfb2819fd3d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+a4980311fb7bb9e7893708e6bd3fbbfb2819fd3d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 287b2779b8de4aa8fd579ccfbe94c2bc6cdb472e182f2abccbf8562436f2cd43
[INFO] running `Command { std: "docker" "start" "-a" "287b2779b8de4aa8fd579ccfbe94c2bc6cdb472e182f2abccbf8562436f2cd43", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "287b2779b8de4aa8fd579ccfbe94c2bc6cdb472e182f2abccbf8562436f2cd43", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "287b2779b8de4aa8fd579ccfbe94c2bc6cdb472e182f2abccbf8562436f2cd43", kill_on_drop: false }`
[INFO] [stdout] 287b2779b8de4aa8fd579ccfbe94c2bc6cdb472e182f2abccbf8562436f2cd43
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+a4980311fb7bb9e7893708e6bd3fbbfb2819fd3d" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3381b470e6e2e6fc570ed8a3daf0c07bab5bad024252d2f87f2ee010b234165e
[INFO] running `Command { std: "docker" "start" "-a" "3381b470e6e2e6fc570ed8a3daf0c07bab5bad024252d2f87f2ee010b234165e", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.5.0
[INFO] [stderr]    Compiling libc v0.2.175
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]     Checking cfg-if v1.0.3
[INFO] [stderr]    Compiling maybe-uninit v2.0.0
[INFO] [stderr]     Checking lazy_static v1.5.0
[INFO] [stderr]    Compiling zerocopy v0.8.26
[INFO] [stderr]    Compiling getrandom v0.1.16
[INFO] [stderr]     Checking rustc-serialize v0.3.25
[INFO] [stderr]    Compiling pkg-config v0.3.32
[INFO] [stderr]     Checking bitflags v0.9.1
[INFO] [stderr]     Checking void v1.0.2
[INFO] [stderr]     Checking scopeguard v1.2.0
[INFO] [stderr]     Checking memalloc v0.1.0
[INFO] [stderr]     Checking bitflags v0.3.3
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]    Compiling crossbeam-utils v0.7.2
[INFO] [stderr]    Compiling num-bigint v0.1.45
[INFO] [stderr]    Compiling memoffset v0.5.6
[INFO] [stderr]    Compiling crossbeam-epoch v0.8.2
[INFO] [stderr]    Compiling num-complex v0.1.44
[INFO] [stderr]    Compiling num-bigint v0.2.6
[INFO] [stderr]    Compiling num-rational v0.1.43
[INFO] [stderr]    Compiling num-complex v0.2.4
[INFO] [stderr]    Compiling num-rational v0.2.4
[INFO] [stderr]    Compiling alsa-sys v0.1.2
[INFO] [stderr]     Checking crossbeam-channel v0.4.4
[INFO] [stderr]     Checking crossbeam-queue v0.2.3
[INFO] [stderr]     Checking crossbeam-deque v0.7.4
[INFO] [stderr]     Checking crossbeam v0.7.3
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]     Checking nix v0.9.0
[INFO] [stderr]     Checking getrandom v0.2.16
[INFO] [stderr]     Checking uuid v0.8.2
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking num-integer v0.1.46
[INFO] [stderr]     Checking approx v0.3.2
[INFO] [stderr]     Checking rand v0.3.23
[INFO] [stderr]     Checking libmath v0.2.1
[INFO] [stderr]     Checking num-iter v0.1.45
[INFO] [stderr]     Checking ppv-lite86 v0.2.21
[INFO] [stderr]     Checking num v0.1.43
[INFO] [stderr]     Checking pitch_calc v0.12.0
[INFO] [stderr]     Checking num v0.2.1
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking alsa v0.2.2
[INFO] [stderr]     Checking midir v0.5.0
[INFO] [stderr]     Checking rand_distr v0.2.2
[INFO] [stderr]     Checking oscen v0.1.4 (/opt/rustwide/workdir)
[INFO] [stdout] warning: fields `cutoff_freq` and `wet_decay` are never read
[INFO] [stdout]   --> src/instruments.rs:15:5
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub struct WaveGuide {
[INFO] [stdout]    |            --------- fields in this struct
[INFO] [stdout] ...
[INFO] [stdout] 15 |     cutoff_freq: In,
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] 16 |     wet_decay: In,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `WaveGuide` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `cutoff_freq` and `wet_decay` are never read
[INFO] [stdout]   --> src/instruments.rs:15:5
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub struct WaveGuide {
[INFO] [stdout]    |            --------- fields in this struct
[INFO] [stdout] ...
[INFO] [stdout] 15 |     cutoff_freq: In,
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] 16 |     wet_decay: In,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `WaveGuide` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 9.95s
[INFO] running `Command { std: "docker" "inspect" "3381b470e6e2e6fc570ed8a3daf0c07bab5bad024252d2f87f2ee010b234165e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3381b470e6e2e6fc570ed8a3daf0c07bab5bad024252d2f87f2ee010b234165e", kill_on_drop: false }`
[INFO] [stdout] 3381b470e6e2e6fc570ed8a3daf0c07bab5bad024252d2f87f2ee010b234165e